Maharashtra Board Class 8 Science MCQ Chapter 16 Reflection of Light

Maharashtra Board Class 8 Science MCQ Chapter 16 Reflection of Light


1 ) Irregular reflection of light does not follow laws of reflection.

A ) True

B ) False

Ans B ) False

2 ) Used in submarines to see objects above the surface of water.

A ) Periscope

B ) Kaleidoscope

Ans A ) Periscope

 

3 ) The perpendicular to the mirror at the point of incidence is called.

A ) Incident ray B ) Reflected ray C ) Normal

Ans C ) Normal

 

4 ) The specialty of the kaleidoscope is that the designs do not repeat themselves.

A ) True

B ) False

Ans A ) True

 

5 ) The light which falls on the mirror, gets and travel in a different direction.

A ) Reflected

B ) Refracted

Ans A ) Reflected

 

6 ) The following are the three laws of reflection.

The angle of reflection is the angle of incidence.

A ) Less than

B ) Equal to

C ) Greater than

Ans B ) Equal to

 

7 ) The law of reflection – The incident ray, the reflected ray and the normal lie in ……………

A ) Opposite plane B ) Different plane C ) Same plane

Ans C ) Same plane

 

8 ) The angle between the incident ray and the normal is called angle of reflection.

A ) False

B ) True

Ans A ) False

 

9 ) The angle of incidence is 300, then the reflected ray will make an angle of 600 with the surface of the mirror.

A ) False

B ) True

Ans B ) True

 

10 ) The angle between the normal and the plane mirror is …………… .

A ) 1800

B ) 450

C ) 900

D ) 00

Ans C ) 900

 

11 ) Light travels in a line.

A ) Straight

B ) Curved

Ans A ) Straight

 

12 ) If the angle between the incident ray and normal is 400, then the angle between the reflected ray and normal will be

A ) 500

B ) 400

C ) 450

D ) 900

Ans B ) 400

 

13 ) The point at which the incident ray falls is called.

A ) Point of incidence B ) Angle of incidence C ) Normal

Ans A ) Point of incidence

 

14 ) An object used by people making wall paper to obtain different designs to decorate walls.

A ) Periscope

B ) Kaleidoscope

Ans B ) Kaleidoscope

 

15 ) A non-luminous source of light.

A ) Sun

B ) Moon

Ans B ) Moon

 

16 ) We can see objects , when the light coming from the enters our eyes.

A ) Surrounding

B ) Objects

C ) Room

Ans B ) Objects

 

17 ) The sun light falling on the surface of the moon is reflected as moon does not have light of its own.

A ) False

B ) True

Ans B ) True

 

18 ) Images of an object can be formed by ……………

A ) Heat

B ) Light

Ans B ) Light

 

19 ) Rays of light reflected from polished surface show regular reflection.

A ) True

B ) False

Ans A ) True

 

20 ) Based on properties of reflection of light.

A ) Periscope

B ) Magnifying glass

Ans A ) Periscope

 

21 ) The law of reflection – The incident ray and the reflected ray are on the sides of the normal.

A ) Same

B ) Opposite

C ) Different

Ans B ) Opposite

 

22 ) The rays going away from the surface after reflection are called.

A ) Incident ray B ) Reflected ray C ) Refracted ray

Ans B ) Reflected ray.

 

23 ) Used in underground bunkers to keep a watch on people on the ground.

A ) Periscope

B ) Kaleidoscope

Ans A ) Periscope

 

24 ) For regular reflection, the angles of incidence as well as angles of reflection are the same for all parallel rays falling on the surface.

A ) True

B ) False

Ans A ) True

 

25 ) The rays falling on any surface are called.

A ) Incident ray B ) Reflected ray C ) Refracted ray

Ans A ) Incident ray

 

26 ) In a saloon, the image of the back of your head is formed in the mirror at the back.

A ) True

B ) False

Ans A ) True

27 ) Label the figure

Ray OA – incident ray Ray ON – Normal

A ) Ray OB – Reflected ray

Point O – Point of incidence

Ray OA – reflected ray Ray ON – Normal

B ) Ray OB – Incident ray

Point O – Angle of incidence

Ans

Ray OA – incident ray Ray ON – Normal

A ) Ray OB – Reflected ray

Point O – Point of incidence

28 ) Turning back of the ray of light after striking a surface is called.

A ) Refraction of light B ) Reflection of light C ) Absorption of light

Ans B ) Reflection of light

 

29 ) The laws of reflection cannot be verified with the help of an experiment.

A ) True

B ) False

Ans B ) False

 

30 ) In regular reflection, the angles of incidence at different points are different.

A ) True

B ) False

Ans B ) False

 

31 ) Periscope consists of three rectangular mirrors of the same size.

A ) False

B ) True

Ans A ) False

 

32 ) If the incident ray strikes the surface at 900, then the reflected ray will travel back along the same path.

A ) True

B ) False

Ans A ) True

 

33 ) Rays of light reflected from wall show regular reflection.

A ) False

B ) True

Ans A ) False

 

34 ) We can see objects when the coming from these objects enter our eyes.

A ) Sight

B ) Light

Ans B ) Light

 

35 ) The image obtained in the mirror is real and erect.

A ) False

B ) True

Ans A ) False

 

36 ) If the angle between the reflected ray and incident ray is 1180, the angle of reflection is …………… .

A ) 590

B ) 1180

C ) 880

D ) 900

Ans A ) 590

 

37 ) Laws of reflection are followed in both regular and irregular reflection.

A ) False

B ) True

Ans B ) True

 

38 ) Scattering of light is an effect of irregular reflection of light.

A ) True

B ) False

Ans A ) True

 

39 ) Rays of light incident on the mirror will produce irregular reflection.

A ) False

B ) True

Ans A ) False

 

40 ) Search lights are based on regular reflection of light.

A ) True

B ) False

Ans A ) True

 

41 ) The sense of is the most important among our five senses.

A ) Sound

B ) Vision

Ans B ) Vision

 

42 ) i = r A ) True

B ) False

Ans A ) True

 

43 ) In regular reflection, the reflected rays are parallel to each other

A ) True

B ) False

Ans A ) True

 

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